$OpenBSD: patch-test_lib_cpp_08-ssl-fake-cacert_cpp,v 1.1 2017/04/15 20:46:16 sthen Exp $
--- test/lib/cpp/08-ssl-fake-cacert.cpp.orig	Fri Apr 14 15:15:51 2017
+++ test/lib/cpp/08-ssl-fake-cacert.cpp	Fri Apr 14 15:16:51 2017
@@ -1,3 +1,7 @@
+#if defined(__OpenBSD__)
+#  define EPROTO EOPNOTSUPP
+#endif
+
 #include <errno.h>
 #include <mosquittopp.h>
 
